Transmission Adapter Identification

Hi everyone and Merry Christmas,

I'm in the middle of doing an engine/transmission/transfer case rebuild. The engine is an odd fire V6, the trans is a T90a and the transfer case is a D18 and also has a Warn overdrive on it. I've been able to locate all of the parts that I need (at least I hope I have) except for the adapter to mate the T90 to the V6 bell housing. The only markings on it are: TD 25 93, cast into it. There is no indication as to who may have manufactured it. I need to somehow locate the input shaft seal and the gasket that goes between the adapter and the transmission case. Does anyone have any idea who makes this adapter and where I might find these parts?

Thanks,
Brad

 

After market manuf. are proud of their products so there should be some kind of I.D. markings on it some where. Looks similar to AA adapters. That seal should also have a number on it since those dimensions you are working with are pretty standard.

 

TD should be TransDapt.

 

The gasket is easy to make. I'd be willing to bet it is a T-86 input seal.
Make sure the area the seal rides is smooth or the seal will be readily damaged and you will have a leak.
Does look like a Transdapt adapter.
Definitely not a Hoosier and not typical of a Novak or AA adapter. AA and Novak normally clearly mark theirs with their name cast in (although not always on very early adapters). Hoosier usually stamped theirs.



Sent from my iPhone

 

Thanks for the input guys. I agree, the gasket should be pretty easy to make and if locating the actual gasket isn't possible, I'll take the time to do that. The exposed side of the seal doesn't have a number on it, but I'll pull it out (intact, I hope) and inspect it more thoroughly for any evidence of what it is. Worse comes to worse, I'll take a bunch of measurements and buy a seal based on those. I went to the Transdapt website and the only transmission adapters they advertised looked like this:



Maybe they no longer manufacture adapters like mine? I looked at the AA and the Novak adapters and theirs are completely different in that the seal remains in the input shaft bearing retainer which remains bolted to the transmission case. The adapter just acts as an adapter with no sealing function. I'll keep looking and I'll let you know what, if anything, I discover.

 

TD looks like an Offenhauser clone.
The gasket would be the same.
The Offy adapter used a Ford part number seal if I recall.

 

I have the same adapter you have. It has a National seal. Part number 482208.

 

Well, time for an update. I finally got around to removing the input shaft seal from my transmission adapter and discovered that it had two, identical seals installed within the seal bore. I don't know if it came that way from the manufacturer or whether some PO had a problem with leakage. Looking at them shows that they are made by Ford and the only markings are the letters, "NS". Doug, I'll have to check if your number cross references with the ones that I have, but if I can't find the correct seal, I'll just have to take some measurements and search for what I need. Any advice is appreciated. Here are some photos:

Thanks,

 

With them being stamped NS likely they were made by National Seal for Ford.

 

With them being stamped NS likely they were made by National Seal for Ford. Here is a link to the specs on the 482208:http://fme-cat.com/overlays/part-detail.aspx?pNum=482208&partType=Oil%20Seal&brandId=NW#.Ush-cRUo5cs

 

Thanks Doug, that makes sense. I'll go take some measurements and compare them to the specs listed in your link. I think this mystery may be solved.